package cn.demo.dao.impl;

import cn.demo.dao.UserDao;
import cn.demo.entity.User;

public class UserDaoImpl implements UserDao {

	public String query() {

		return "success";
	}

	public void save(User u) {
		if(u!=null)
			System.out.println("成功");
		else
			System.out.println("失败");
	}

}
